Research On Low-carbon Economic Dispatching And Peak-shaving Compensation Allocation Strategy Of Power System Considering Generalized Energy Storage

In order to achieve the "3060" dual carbon strategic goal,the Chinese Academy of Sciences has released an action plan to support the "dual carbon" strategy.At present,China’s electricity structure is still dominated by thermal power generation,so it is necessary to accelerate the pace of green transformation of electricity.However,the large-scale grid connection of wind power has led to an increase in the pressure of deep peak shaving during valley load periods,high carbon emission coefficient and large carbon emissions of deep peak shaving units,and low enthusiasm for conventional thermal power units to participate in the market for peak shaving auxiliary services.Therefore,in order to alleviate the pressure of deep peak shaving in the system and reduce the carbon emissions of the unit,this article proposes a low-carbon economic scheduling scheme that considers the joint peak shaving of generalized energy storage and carbon capture equipment,aiming to improve the system’s economy and low-carbon performance.In order to improve the operating revenue of energy storage power stations,it is proposed to participate in the peak shaving auxiliary service market as an independent interest entity.To increase the enthusiasm of conventional units to participate in allocation,a system optimization scheduling and compensation cost allocation strategy considering deep peak shaving of thermal storage is proposed.Firstly,this study analyzes the operational characteristics of various regulating resources,understands the operating principles of deep peak load regulation thermal power units,carbon capture devices,and generalized energy storage,constructs their respective mathematical models,and conducts specific analysis of their mutual coordination and participation in system optimization dispatch to provide theoretical basis for the low-carbon economic dispatch scheme that considers the coordinated regulation of generalized energy storage and carbon capture devices.Secondly,the study constructs a low-carbon economic dispatch model that considers the coordinated regulation of generalized energy storage and carbon capture devices,incorporates the operating costs of each entity into the objective function,considers constraints such as system power balance in the constraint conditions,and uses MATLAB to call the YALMIP toolbox to construct the dispatch model.The CPLEX solver is used to solve the simulation case and verify the low-carbon and economic characteristics of the proposed dispatch scheme.Finally,in order to explore the peak load regulation auxiliary service market,the study researches the compensation fees and their sources for the entities such as thermal power units and energy storage,establishes a system optimization dispatch model that considers fire-storage deep peak load regulation,and formulates a cost-sharing strategy for wind power plants and conventional thermal power units to share the compensation fees for deep peak load regulation units and energy storage.This strategy redistributes the payment fees to wind power plants and conventional thermal power units by considering factors such as electricity quantity,cost and electricity fee factors,and peak load regulation willingness factors.Simulation results show that the proposed compensation fee sharing strategy can increase the overall benefits of energy storage,improve the peak load regulation resource allocation in the market,and increase the enthusiasm and initiative of conventional thermal power units to participate in peak load regulation auxiliary service markets.